SCENARIO 11-12 a Student Team in a Business Statistics Course Designed an Designed

question 263

True/False

SCENARIO 11-12
A student team in a business statistics course designed an experiment to investigate whether the brand
of bubblegum used affected the size of bubbles they could blow. To reduce the person-to-person
variability, the students decided to use a randomized block design using themselves as blocks.
Four brands of bubblegum were tested. A student chewed two pieces of a brand of gum and then blew
a bubble, attempting to make it as big as possible. Another student measured the diameter of the
bubble at its biggest point. The following table gives the diameters of the bubbles (in inches) for the
16 observations.
-Referring to Scenario 11-12, the null hypothesis for the F test for the block effects
should be rejected at a 0.05 level of significance.

Differentiate between bootstrap and permutation resampling methods.

Recognize the limitations and accuracies of bootstrap confidence intervals with small samples.

Understand the application of different bootstrap confidence interval methods (e.g., percentile, BCa) depending on the bias and sample size.

Apply the concept of resampling with replacement in the bootstrap method.

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Definitions:

Natural Attractants

Substances or stimuli that naturally lure or attract organisms, often used in pest control or animal behavior studies.

Evolved

The process by which organisms undergo gradual changes in their genetic makeup over successive generations, leading to the development of new characteristics or species.

Investing Cash Outflow

Cash used in investing activities, including purchasing assets or making loans.

Cash Dividend

A payment made by a corporation to its shareholders, usually as a distribution of profits.